An overview of the factors affecting the mechanical properties of recycled concrete

Concrete, as one of the main components of the manufacturing industry since the beginning of the process of production, operation and destruction, plays a major role in the creation of environmental pollution. Since more than 70% of the main body of concrete is aggregate, the promotion of culture an...

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Autores principales:	Fathollah Sajedi, Hasan Jalilifar
Formato:	article
Lenguaje:	FA
Publicado:	Iranian Society of Structrual Engineering (ISSE) 2019
Materias:	sustainable development recycled concrete recycled aggregate mechanical properties compressive strength tensile strength modulus of elasticity Bridge engineering TG1-470 Building construction TH1-9745
Acceso en línea:	https://doaj.org/article/ffc383884f2443e892ab9f735a34c074
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spelling	oai:doaj.org-article:ffc383884f2443e892ab9f735a34c0742021-11-08T15:52:40ZAn overview of the factors affecting the mechanical properties of recycled concrete2476-39772538-261610.22065/jsce.2018.104332.1368https://doaj.org/article/ffc383884f2443e892ab9f735a34c0742019-08-01T00:00:00Zhttps://www.jsce.ir/article_57930_e09269231f21d965cd3cc2a3034c70f7.pdfhttps://doaj.org/toc/2476-3977https://doaj.org/toc/2538-2616Concrete, as one of the main components of the manufacturing industry since the beginning of the process of production, operation and destruction, plays a major role in the creation of environmental pollution. Since more than 70% of the main body of concrete is aggregate, the promotion of culture and considerations based on the principles of sustainable development in design, construction and demolition process of concrete is of great importance. One of the basic principles of sustainable development is the importance of recycling. Recycling of damaged concrete in the last century has become one of the most important interests of researchers. So, after studying and recognizing their durability and mechanical properties (MP’s), today in developed countries, the necessary relationships for the recognition of structural performance of these concretes is under construction. The purpose of this research is to investigate the results of research carried out in different countries in the field of recognition of the MP’s of recycled concretes (RC’s). More than 80 articles published in prestigious technical journals were examined and classified together in the six groups that the researchers considered in analyzing the MP’s of RC’s. The effect of each of these groups on compressive and tensile strengths and elasticity of concrete were studied. The results showed that the type, size and quality of recycled aggregates (RA’s) are very effective in determining the level of replacement of recycled materials (RM’s) in concrete. Curing conditions, water reducing and pozzolanic materials, although effective in improving the MP’s of RC’s, cannot reduce the adverse effects of increasing the replacement of RM’s on the mechanical properties of concrete. Concerning the effect of age on the mechanical properties of RC’s, it is common ground that some of these properties are similar to conventional ones.Fathollah SajediHasan JalilifarIranian Society of Structrual Engineering (ISSE)articlesustainable developmentrecycled concreterecycled aggregatemechanical propertiescompressive strengthtensile strengthmodulus of elasticityBridge engineeringTG1-470Building constructionTH1-9745FAJournal of Structural and Construction Engineering, Vol 6, Iss شماره ویژه 2, Pp 25-44 (2019)
institution	DOAJ
collection	DOAJ
language	FA
topic	sustainable development recycled concrete recycled aggregate mechanical properties compressive strength tensile strength modulus of elasticity Bridge engineering TG1-470 Building construction TH1-9745
spellingShingle	sustainable development recycled concrete recycled aggregate mechanical properties compressive strength tensile strength modulus of elasticity Bridge engineering TG1-470 Building construction TH1-9745 Fathollah Sajedi Hasan Jalilifar An overview of the factors affecting the mechanical properties of recycled concrete
description	Concrete, as one of the main components of the manufacturing industry since the beginning of the process of production, operation and destruction, plays a major role in the creation of environmental pollution. Since more than 70% of the main body of concrete is aggregate, the promotion of culture and considerations based on the principles of sustainable development in design, construction and demolition process of concrete is of great importance. One of the basic principles of sustainable development is the importance of recycling. Recycling of damaged concrete in the last century has become one of the most important interests of researchers. So, after studying and recognizing their durability and mechanical properties (MP’s), today in developed countries, the necessary relationships for the recognition of structural performance of these concretes is under construction. The purpose of this research is to investigate the results of research carried out in different countries in the field of recognition of the MP’s of recycled concretes (RC’s). More than 80 articles published in prestigious technical journals were examined and classified together in the six groups that the researchers considered in analyzing the MP’s of RC’s. The effect of each of these groups on compressive and tensile strengths and elasticity of concrete were studied. The results showed that the type, size and quality of recycled aggregates (RA’s) are very effective in determining the level of replacement of recycled materials (RM’s) in concrete. Curing conditions, water reducing and pozzolanic materials, although effective in improving the MP’s of RC’s, cannot reduce the adverse effects of increasing the replacement of RM’s on the mechanical properties of concrete. Concerning the effect of age on the mechanical properties of RC’s, it is common ground that some of these properties are similar to conventional ones.
format	article
author	Fathollah Sajedi Hasan Jalilifar
author_facet	Fathollah Sajedi Hasan Jalilifar
author_sort	Fathollah Sajedi
title	An overview of the factors affecting the mechanical properties of recycled concrete
title_short	An overview of the factors affecting the mechanical properties of recycled concrete
title_full	An overview of the factors affecting the mechanical properties of recycled concrete
title_fullStr	An overview of the factors affecting the mechanical properties of recycled concrete
title_full_unstemmed	An overview of the factors affecting the mechanical properties of recycled concrete
title_sort	overview of the factors affecting the mechanical properties of recycled concrete
publisher	Iranian Society of Structrual Engineering (ISSE)
publishDate	2019
url	https://doaj.org/article/ffc383884f2443e892ab9f735a34c074
work_keys_str_mv	AT fathollahsajedi anoverviewofthefactorsaffectingthemechanicalpropertiesofrecycledconcrete AT hasanjalilifar anoverviewofthefactorsaffectingthemechanicalpropertiesofrecycledconcrete AT fathollahsajedi overviewofthefactorsaffectingthemechanicalpropertiesofrecycledconcrete AT hasanjalilifar overviewofthefactorsaffectingthemechanicalpropertiesofrecycledconcrete
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An overview of the factors affecting the mechanical properties of recycled concrete

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